• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Protective cover (1) for an injection molding machine (2), comprising an at least two-part protective door (3) comprising a first door section (A) and a second door section (B), wherein the two door sections (A, B) together in a closed position (SS ) completely cover an access opening (4) in the protective cover (1), wherein both door sections (A, B) are displaceable and that in an open position (OS1) of the first door section (A) both door sections (A, B) are arranged one behind the other , wherein one of the two door sections (A) at least partially obscured the other of the two door sections (B).
    公开号:AT511231A1
    申请号:T3782011
    申请日:2011-03-18
    公开日:2012-10-15
    发明作者:Josef Ing Huber；Robert Dipl Ing Leindecker
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    «· · · &Quot; i · ♦, · * * * • ·:. · **. R; · · 1
    The invention generally relates to a protective cover for an injection molding machine.
    Such protective covers serve primarily to protect the area of injection molding machines, in which automatic operations take place, from undesired access or entry. In addition, they also serve to prevent unwanted ejection of parts in the case of defects in the area of machine movements.
    Generally speaking, e.g. US Pat. No. 7,540,736 B2, in which a security door device is shown for an injection molding machine with a first safety door and a second safety door, which can be coupled to one another. These two doors are arranged on different sides (front and back) of the injection molding machine. There is thus only one door on one side of the injection molding machine and consequently only one open position and one closed position. Thus, the larger the injection molding machine is and the larger the parts to be removed in the area of the door, the larger and more massive the door must be formed. Accordingly, the door is heavy, making manual movement relatively tiring for an operator.
    EP 0 322 754 B1 also shows protective doors that are part of an injection molding machine cover. These two safety doors are not coupled to each other, but adjacent to a arranged approximately in the middle of the machine frame stationary protective element. Again, in very large versions of the injection molding machine, the doors must be made quite solid and are therefore difficult to use. In addition, the two access openings are separated by the support member and can not form a common large access opening.
    In contrast, the invention relates to a protective cover for an injection molding machine, comprising an at least two-part protective door of a first door portion and a second door portion, wherein the two door portions 69581 22 / hn together in a closed position completely cover an access opening in the protective cover.
    Such a generic protective cover is disclosed in DE 101 41 835 C2. It shows a device for locking protective doors of an industrial machine, in particular an injection molding machine. It is stated therein how two guard doors are coupled and locked together. In the drawings, it is shown that the two doors are arranged transversely to each other, but it is also taught that the two guard doors are arranged in a line, with the two guard doors then moving towards one another when closing. In addition, these two doors can each form a protective door leaf of a two-part protective door of an industrial machine.
    A disadvantage of this design is that the protective doors in the open position require a relatively large amount of space, since both doors are arranged in the open position in each case laterally of the opening. Thus, the entire protective cover must be designed such that on both sides of the entire opening enough backup space for the doors is present.
    The object of the present invention is to provide a comparison with the prior art improved protective cover for an injection molding machine. In particular, the space required for the doors should be kept as low as possible, especially in the open position.
    This is achieved for a protective cover with the features of the preamble of claim 1, characterized in that both door sections are displaceable and that in an open position of the first door section, both door sections are arranged one behind the other, wherein one of the two door sections at least partially conceals the other of the two door sections. As a result, the two door sections need not be arranged on both sides of the opening, but are arranged in parallel one behind the other and overlapping each other. Covering or concealing means that the protective cover forming surfaces of the two door sections are arranged in a normal view to the longitudinal direction of the protective cover view at least in regions one behind the other.
    In general, it should be pointed out that the term protective door or door section according to the present invention means a movable separating protective device according to the German industrial standard EN 201. This door is movable relative to a fixed guard.
    According to a preferred embodiment of the present invention, it can be provided that, in an open position of both door sections, both door sections are arranged one behind the other at least in regions. That is, the door sections are arranged not only in the half-open position one behind the other but also in the fully open position. For this purpose, it can preferably be provided that in the open position of both door sections these two door sections at least partially cover a part of the frame that they would not cover in the closed position. According to the invention, however, this overlapping part is only on one side of the access opening and thus smaller than in the prior art, whereby in the area directly next to a protective opening, for example, control devices or similar important components can be arranged. An area of the two areas laterally of the access opening is thus always free and not concealed in any of the door positions by a door. Thus, the entire system can be built much more compact and the range of motion for an operator can be kept smaller, thereby increasing the efficiency of operation is possible.
    Preferably, it can further be provided that a first part of the access opening can be opened and closed by the first door section independently of the second door section. By this embodiment, a particular weight advantage is given, since the operator must move for opening the first access opening only a relatively light part of the protective door. In contrast, a second part of the access opening can be opened and closed by the second door section. • * * · • «4
    In order to guarantee a simple opening movement, it can preferably be provided that both door sections are at least partially coupled to each other movable. For this purpose, it can further be provided that the second door section can only be opened and closed via the first door section that is coupled in terms of movement with the second door section, wherein a door handle is preferably arranged only on the first door section.
    Of course, should not be ruled out that the sliding movement of the individual door sections runs at least partially curved. Accordingly, it can be provided that a door section can be moved along a curved slide track. It can thereby be achieved that the fronts of the two door sections are flush in the closed position and lie in one plane. Preferably, however, it is provided that both door sections are displaceable substantially parallel to the longitudinal direction of the protective cover. Since the protective cover is usually arranged on a line, it is also preferably provided that both door sections are linearly displaceable.
    According to a preferred embodiment of the invention can be provided that at least one door section by a drive, for example in the form of an electric motor or a hydraulic drive, can be opened and closed. To additionally reduce wear and noise in the case of the large weights to be moved, it can preferably be provided that the opening and / or closing movement of at least one door section is damped by a movement damper.
    As already mentioned, the protective cover consists of a movable separating protective device and a fixed separating protective device, wherein the fixed separating protective device is preferably a rigid, preferably metallic frame, on which both door sections are slidably mounted.
    Preferably, it may further be provided that both door sections, preferably via rollers, are displaceable along a, preferably common, rail. In this case, the rail can be assigned to the frame and the rollers with the 5th
    Be connected. In principle, however, other forms of movement, such as gliding or the like are possible.
    As already indicated, it is particularly important for the present invention that the door sections are arranged on one side of the injection molding machine and thus close together a large opening in the closed position.
    Protection is also desired for an injection molding machine with a closing unit, an injection unit and a protective cover according to one of claims 1 to 13. It can be particularly preferably provided that the protective cover has at least two two-part protective doors, wherein a first protective door of the closing unit and a second protective door associated with the injection unit. For both safety doors the features and advantages of the invention apply.
    In order to guarantee the best possible security at least along the entire longitudinal sides of the injection molding machine, it can preferably be provided that the protective cover covers at least the majority of both longitudinal sides of the injection molding machine as high as manhole when the protective door is closed. But it can also be the broadsides at least partially man-high covered. It is also a completely closed cover possible. Basically, it should be noted that depending on the size of the entire injection molding machine, the protective doors cover or cover the tool area in an I-shaped, L-shaped or C-shaped manner. In the case of a C-shaped protective door, an encapsulation is thus provided transversely to the longitudinal orientation of the injection molding machine, at least in the area of the tool.
    Furthermore, it is preferably provided that when the protective door is open, the closing unit is assigned movements of the closing unit are prevented by a dual locking system with two independent locking safety elements. In this case, a closing safety element act on the controller and another on the engine or on the brake. Thus, both safety systems are activated when the closing side door is open, whereby dangerous machine movements are excluded. 6
    Further details and advantages of the present invention will be explained in more detail below with reference to the description of the figures with reference to the exemplary embodiments illustrated in the drawings. Show:
    1 is a schematic representation of the protective cover with protective door in the closed position,
    2 is a schematic representation of the protective cover with a first door portion in the open position,
    3 is a schematic representation of a protective cover in the open position of both door sections,
    4 shows a front view of a protective cover with closed protective doors, FIG. 5 shows a front view with an opened first door section,
    6 is a front view with two open first door sections,
    7 shows a front view with the safety door completely open in the region of the injection unit,
    8 is a front view with the safety door completely open in the region of the closing side,
    9 shows a section through the protective door in the region of the lower storage for the second door section,
    10 shows a section through the first door section in the region of the lower storage,
    11 shows a section through the mounting of the door sections in the upper area and FIG. 12 shows a three-dimensional representation of a locking device.
    In Fig. 1, a protective cover 1, consisting of the frame 6 and a protective door 3 is shown. In this case, the protective door 3 consists of the first section A and the second section B, wherein the first section A, a door handle 5 is arranged. The individual door sections A and B are displaceable in the longitudinal direction L. In this closed position SS, the moving parts of the injection molding machine 2 are secured against unwanted access. 7
    In order to open a first part 4a of the access opening 4, only the first section A of the protective door 3 is moved according to FIG. This brings due to the lower mass compared to the movement of the entire protective door 3 the considerable advantage of easier operation. Nevertheless, general work and unloading operations may be performed by the narrower first part 4a of the access opening 4. In this first open position OS1, the first door section A covers the second door section B substantially completely. In addition, the advantage already exists in this first open position OS1 that a control 11 arranged directly next to the access opening 4 is not covered by the first door section A and thus the operator can remain directly next to the first part 4a of the access opening 4.
    Subsequently, the second open position OS2 is shown in Fig. 3, in which the first part 4a and the second part 4b of the access opening 4 are opened. This is especially necessary when large parts of the closing side (for example, the platen) have to be removed. The two door sections A and B are coupled movable. Since this complete open position OS2 is relatively seldom to be performed, it is at least intended for this opening action to move the entire weight of the protective door 3 (sections A and B) together. In this case, a support can be provided via an electromotive, pneumatic or hydraulic drive unit. It should also not be ruled out that both door sections A and B each have a separate drive unit. Even with this complete open position OS2 is compared to the generic protective cover according to DE 101 41 835 C2 given the advantage that on one side next to the access opening 4 no space for the open door sections A and B is needed.
    In Fig. 4, an injection molding machine 2 is shown in a front view, with both the closing unit 9 associated protective door 3 and the injection side 10 associated protective door 3 'are each in the closed position SS. On the right side of the injection unit 30 of the injection side 10 is shown. The respective first door sections A and D and the respective second door sections B and C preferably have windows 8 in order to ensure an insight into the moving parts of the injection molding machine 2 even in the closed position.
    By opening and moving the first door section A via the door handle 5 to the left, as shown in FIG. 5, the first part 4a of the access opening 4 is opened, whereby the first door section A covers the second door section B at least partially. In the frame 6, the rail 8 is visible, along which the first door section A is movable.
    In FIG. 6, the first door section D of the protective door 3 'assigned to the injection unit 10 conceals the second door section C and thus reaches the first open position OS1.
    7, the two door sections C and D jointly move further to the left and disappear behind the frame area 6. In this central area of the frame 6 various shelves for computers or the like may be present and thus additionally optimize the workstation of an operator around the controller 11.
    8, the second, entire open position OS2 is reached also in the region of the closing side 9, in which the two parts 4a and 4b form a common large access opening 4. The two door sections A and B cover together only on the left side of the access opening 4 a part of the frame 6. in the access opening 4 are schematically shown the movable platen 31, the fixed platen 32 and the two clamped therebetween mold halves 33 in the open position.
    9 shows a section through the second door section B, to which the door section B is connected via connecting means 14 to a roller 7b. This roller 7b is movable along a rail 8. This rail 8 in turn is connected via a rail bracket 13 to the frame 6. As additional security, at the second door section B and its connecting means 14, a
    Wed »• ·
    Backup roller 15 may be provided. This serves to prevent the upper guide roller 7b from slipping out of the flat-oval-shaped rail 8.
    In contrast, a section through the guide of the first door section A is shown in FIG. In this case, the first door section A is connected via a connecting piece 16 to the connecting means 14 and thus to the roller 7a. In order to enable the overlapping or covering of the two door sections A and B, a guide slot 17 is formed in the region of the door section B, through which the connecting piece 16 fits through and is displaceable in the longitudinal direction L.
    In Fig. 11 is a section through the storage in the upper region of the door sections A and B is shown. In this case, the second door section B is slidably mounted via an angle 24 in a guide slot 18 of a sliding guide 20. The sliding guide 20 may be formed in the form of a polyamide jaw. Of course, it should not be ruled out that this storage takes place over rollers or the like.
    The sliding guide 20 itself is connected via an S-shaped profile piece 25 fixed to a connected to the frame 6 console 26. Since the first door section A requires a greater freedom of movement in relation to the frame 6, this first door section A is connected to the frame 6 or the console 26 via a telescopic linear guide 19. The individual telescopic rails 27, 27 'and 27 "serve to guide the door section A in the individual movement sections between the closed position SS and the second open position OS2. Also in this upper area a longitudinal slot 28 is provided in the second door section B, so that the first door section A can pass through the second door section B and cover. The telescopic linear guide 19 has the advantage of a very low installation height.
    In Fig. 12, a locking device 23 is shown, whereby in the closed position SS, the door section A is connected to the frame 6. The locking device 23 may have a clamping plate 21 associated with the frame and a locking pin associated with the first door section A. Of course, this arrangement can also be chosen vice versa. It can also be provided a monitoring sensor. 10
    It should also be mentioned that in the present sliding protection on the injection side 10, the lower push-outs with the protective door 3 'are completely removed, so that no jamming contour is present for dispensing the spray-on cake.
    Thus, by the present invention, a protective cover 1 is shown in which on one side of the injection molding machine cover a door 3 is arranged, which itself is formed in two parts, wherein in a first opening portion a first door portion A (still without second door portion B) substantially parallel to second fixed door section B is displaceable and in a second opening portion of the first door section A, together with the second door section B is movable coupled.
    Innsbruck, March 16, 2011
    权利要求:
    Claims (16)
    [1]
    1. Protective cover (1) for an injection molding machine (2), with an at least two-part protective door (3) of a first door section (A) and a second door section (B), wherein the two door sections (A, B) together in one closed position (SS) completely cover an access opening (4) in the protective cover (1), characterized in that both door sections (A, B) are displaceable and that in an open position (QS1) of the first door section (A) both door sections ( A, B) are arranged one behind the other, one of the two door sections (A) at least partially covering the other of the two door sections (B).
    [2]
    2. Protective cover according to claim 1, characterized in that in an open position (OS2) of both door sections (A, B) both door sections (A, B) are arranged at least in regions one behind the other.
    [3]
    3. Protective cover according to claim 1 or 2, characterized in that a first part (4a) of the access opening (4) can be opened and closed by the first door section (A) independently of the second door section (B).
    [4]
    4. Protective cover according to one of claims 1 to 3, characterized in that a second part (4b) of the access opening (4) can be opened and closed by the second door section (B).
    [5]
    5. Protective cover according to one of claims 1 to 4, characterized in that the two door sections (A, B) at least partially coupled to each other are movable.
    [6]
    6. Protective cover according to one of claims 1 to 5, characterized in that the second door section (B) only via the movement with the second door section (B) movement-coupled first door section (A) can be opened and closed. 69581 22 / eh 2
    [7]
    7. Protection cover according to one of claims 1 to 6, characterized in that only at the first door portion (A) a door handle (5) is arranged.
    [8]
    8. Protective cover according to one of claims 1 to 7, characterized in that both door sections (A, B) substantially parallel to the longitudinal direction (L) of the protective cover (1) are displaceable.
    [9]
    9. Protective cover according to one of claims 1 to 8, characterized in that both door sections (A, B) are linearly displaceable.
    [10]
    10. Protective cover according to one of claims 1 to 9, characterized in that at least one door section (B) by a drive, for example in the form of an electric motor or a pneumatic drive, open and can be closed.
    [11]
    11. Protective cover according to one of claims 1 to 10, characterized in that the opening and / or closing movement of at least one door section (A, B) is damped by a motion damper.
    [12]
    12. A protective cover according to one of claims 1 to 11, characterized by a rigid, preferably metallic, frame (6) on which both door sections (A, B) are displaceably mounted.
    [13]
    13. A protective cover according to one of claims 1 to 12, characterized in that both door sections (A, B), preferably via rollers (7a, 7b), along a, preferably common, rail (8) are displaceable.
    [14]
    14. Injection molding machine (2) with a closing unit (9), an injection unit (10) and a protective cover (1) according to one of claims 1 to 13. 3
    [15]
    15. Injection molding machine according to claim 14, characterized in that the protective cover (1) has at least two two-part protective doors (3, 3 '), wherein a first protective door (3) of the closing unit (9) and a second protective door (3') of the injection unit (10) is assigned.
    [16]
    16. Injection molding machine according to claim 14 or 15, characterized in that the protective cover (1) with closed protective door (3, 3 ') covers at least the majority of both long sides of the injection molding machine (2) at least man-high. Innsbruck, March 16, 2011
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    同族专利:
    公开号 | 公开日
    AT511231B1|2014-08-15|
    DE102012004018B4|2019-07-04|
    DE102012004018A1|2012-09-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPH06297534A|1993-04-13|1994-10-25|Mitsubishi Heavy Ind Ltd|Rear part safety door device for injection molding machine or the like|
    JPH07232360A|1994-02-25|1995-09-05|Meiki Co Ltd|Rotary type mold clamping device and rotary type injection molder used thereof|
    JP2006150384A|2004-11-26|2006-06-15|Toyota Motor Corp|Safety door device|CN109365772A|2018-11-29|2019-02-22|蚌埠市振华压铸机制造厂|A kind of cold-chamber die casting machine|DE3744523C1|1987-12-30|1989-06-08|Karl Hehl|Protective cover on a plastic injection molding machine|
    DE10112200C2|2001-03-13|2003-11-13|Demag Ergotech Gmbh|Splash guard|
    DE10141835C2|2001-08-27|2003-09-04|Siemens Ag|Device for locking at least two protective doors of an industrial machine|
    JP2003276071A|2002-03-26|2003-09-30|Toshiba Mach Co Ltd|Injection molding machine|
    JP4185141B2|2007-02-05|2008-11-26|ファナック株式会社|Injection molding machine safety door|CN102941501B|2012-12-10|2014-08-27|济南第一机床有限公司|Rear axle opposing processing machine|
    JP6412054B2|2016-05-18|2018-10-24|ファナック株式会社|Injection molding machine|
    法律状态:
    2019-11-15| MM01| Lapse because of not paying annual fees|Effective date: 20190318 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT3782011A|AT511231B1|2011-03-18|2011-03-18|PROTECTIVE COVER FOR AN INJECTION MOLDING MACHINE|AT3782011A| AT511231B1|2011-03-18|2011-03-18|PROTECTIVE COVER FOR AN INJECTION MOLDING MACHINE|
    DE102012004018.0A| DE102012004018B4|2011-03-18|2012-02-28|Protective cover for an injection molding machine|
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